So far, Mrs. Q said, the blog hasn't caught on at her school, though she's nervous she'll face reprecussions if her anonymous cover is blown.
"School districts are running out of money and want to cut people," she said, calling her school "middle of the road" in terms of resources. "I can't predict how my principal would react to this. I really like my school and I don't want a different job."
But she has offered a few tidbits about herself. She's in her 30s and is the mother of a young son. She considers herself "middle class" and admits to having no formal training in nutrition.
She has also begun offering up her project to guest bloggers. One, a teacher in Japan, posted pictures and a description of the sushi, vegetables and fruit his students eat.
Another, listed only as Ms. A, identified herself as an employee of a school food service provider and a one-time New York City chef. Ms. A, who has her own blog, Brave New Lunch, reported that she had studied the contents of school-distributed cheese pizza and found it contained a whopping 62 ingredients: 25 in the crust, 14 in the sauce, four in the cheese and 19 in the cheese substitute.
In a Jan. 17 blog about herself, Mrs. Q said she'd probably be one of the last people school officials would suspect of starting a project like this one.
"In my professional life, I don't make waves," she wrote. "I avoid conflict. I'm a 'yes' man."
Mrs. Q had a checkup before starting the project in January, she told ABCNews.com, and again about a month ago and has not gained any weight from her new diet. She admits she's not always able to eat more than a few bites. And she eats healthy away from school.
"We love what she's doing," Kathryn Strong, a dietician with the Physician's Committee for Responsible Medicine's Healthy School Lunch project, which advocates for healthier food choices in schools. "I think it's great that she's putting pictures up."
Among the worst offenses many school food service providers are committing are repeatedly serving "highly processed, low-quality animal products," and not giving students another option.
The content of school lunches has gotten all the way to the White House in recent months, with first lady Michelle Obama pushing for healthier options in schools as part of her campaign on childhood obesity.
And a new bill in Congress, Healthy School Meals Act of 2010, would reward districts with additional food aid for offering more vegetarian options in their cafeterias and healthy, non-dairy beverages.
"We found that kids are very open to trying new foods, to eating healthy foods, but you've got to give them the choice," Strong said.
PCRM annually ranks the best and worst school districts in a report card, based on self-reporting by the districts. In 2008, the most recent report available, Montgomery County Public Schools in Maryland was on top of the list with an A, offering four low-fat side dishes and salad dressings every day and menu items such as black bean burgers.
East Baton Rouge Parish School System in Lousiana was graded an F, with PCRM noting that fresh fruit was limited and healthy, vegetarian items were "rarely or never available."
Mrs. Q said her school offers students -- and anonymous blogging teachers -- one hot lunch option with one meatless alternative.